Server-Side Request Forgery (SSRF) in Shibboleth xmltooling

1) Server-Side Request Forgery (SSRF)

EUVDB-ID: #VU77574

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C]

CVE-ID: CVE-2023-36661

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

Exploit availability: Yes

Description

The disclosed vulnerability allows a remote attacker to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input when processing URL in XMLToolingConfig.cpp. A remote attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

xmltooling: 1.0.0 - 3.2.3

External links

http://shibboleth.net/community/advisories/secadv_20230612.txt
http://git.shibboleth.net/view/?p=cpp-xmltooling.git;a=commit;h=6080f6343f98fec085bc0fd746913ee418cc9d30

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.